Yachting Pages has put several of the leading safety cases (and other associated products) to the test. The objective: to ascertain how each product performs and determine which one is best equipped to safely contain a lithium battery-induced fire.
What you need is Cat 8 as it is the latest and greatest… right?
Not necessarily.
Anyone who has been involved in a technology project faces the same quandary and in this digital age the cable for most applications is a data cable. Simply put, this is called Ethernet.
Most people understand what an Ethernet cable looks like, but who understands the difference between the various flavours?
Lets break this down into some simple facts:
From the above table you can see the progressive trend towards higher frequencies = higher speed.
This also has the inverse effect on max distance, however, with the new Cat 8 standard only capable of maintaining high speeds up to 30m.
For this reason, Cat 8 cable is more suited as a short patch cable providing high-bandwidth-capable links between devices in a rack room rather than as a field cable to be run throughout a project over larger distances.
So where does Fibre enter the picture?
Ethernet cable is made up of 8x pairs of solid copper wire. The pairs are twisted to combat interference which disrupts the signal transmission.
Higher Cat specifications include increasingly more shielding to these pairs to further reduce the potential for interference at the higher frequencies necessary for higher speeds.
Along with the higher Cat specification also comes an inevitable increase in price for both the cable and connectors.
Fibre Optic cable uses light to transfer data so is 100% impervious to interference.
Lets face it, not much travels faster than the speed of light, so Fibre Optic cable can achieve incredibly high transmission speeds over huge distances.
So why don’t we just switch to Fibre Optics for all our data needs today and be done with it?
The answer lies in the cost of hardware and installation. Whilst Fibre Optic cable is not significantly more expensive than the higher spec copper (Cat7/8) cable, the terminations, tools and time required to terminate add to the installation cost. Furthermore the electronic (SFP) transceiver modules at each end (essentially each socket includes a laser to transmit/receive the signal) result in a large increase in cost for Fibre Optic hardware.
Therefore the answer to which cable you should choose lies in the following criteria:
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Yachting Pages has put several of the leading safety cases (and other associated products) to the test. The objective: to ascertain how each product performs and determine which one is best equipped to safely contain a lithium battery-induced fire.
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